RAYSTAR REX012832F is a popular small OLED display which is made of 128×32 pixels, diagonal size 0.91 inch, it’s very suitable for wearable device. The REX012832F has the same mechanical dimension as REX012832D but having different pin assignment and supports different interface. REX012832F module is built in with SSD1306BZ controller IC; it supports I2C interface and having 14 pins FPC pintout. As to the REX012832D module is also built in with SSD1306BZ IC but it communicates via SPI interface and having 15 pins FPC pinout. The standard emitting colors for REX012832F are available in white, sky blue and yellow.